Finding the Fourth Proportional to 1,156.10, 1,595.26 and 658.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156.10 : 1,595.26 = 658.72 : x
2. Step 2: Convert to fraction form
   1,156.10/1,595.26 = 658.72/x
3. Step 3: Cross multiply
   1,156.10x = 1,595.26 × 658.72
4. Step 4: Simplify right side
   1,156.10x = 1,050,829.67
5. Step 5: Solve for x
   x = 1,050,829.67/1,156.10
6. Step 6: Final answer
   x = 908.94